2563번 - 색종이

https://www.acmicpc.net/problem/2563

2563번: 색종이

#include <iostream>
#include <cstring>
using namespace std;
int main()
{
    int N, ans=0;
    int location[101][101];
    memset(location, 0, sizeof(location));
    cin >> N;
    for(int i=0; i<N; i++)
    {
        int x, y;
        cin >> x >> y;
        for(int i=y; i<y+10; i++)
        {
            for(int j=x; j<x+10; j++)
            {
                if(location[i][j] == 0)
                {
                    location[i][j] = 1;
                    ans++;
                }
            }
        }
    }
    cout << ans << '\n';
    return 0;

}